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Pilonidal Cyst Case Presentation: Update Course 2015

Video Published 2019-01-11 Updated 2026-06-10

Timestops (14)

So continuing our trend of gross skin and soft tissue infect…

So continuing our trend of gross skin and soft tissue infections. You see a 12-year-old patient following up with you in…

When it comes back, Aaron, when do you operate?

When it comes back, Aaron, when do you operate? After 2. After 2 or 3 I transferred to David. I usually tell them after …

If it's a big thing, you still wait for a 2nd episode, OK.

If it's a big thing, you still wait for a 2nd episode, OK. So I bought hook, line and sinker into the best gum technique…

So you excise out the pits under local

So you excise out the pits under local, just take an 11 blade and cut out and they're 1 millimeter pits just at skin lev…

And then what were you saying about

And then what were you saying about, and then if that, if they recur or if they have larger draining sinuses, then they …

Are we jumping ahead on your a little bit?

Are we jumping ahead on your a little bit? That's sorry. So are there, we're trying to save time. Yeah, I don't know I'v…

So, uh, along those lines, are there any factors that would manage or that would affect your management, either timing a…

They look, you know, they have a deep gluteal fold, lots of a ton of hair. Those patients, it's, it's a miserable proces…

If it's really nasty

If it's really nasty, you would, if it's really nasty with wet to dry dressing change or a wound back back back, OK. OK,…

just briefly looking at the literature

just briefly looking at the literature, the Kradais flap was superior to excision only and pretty comparable to this mod…

Is it a skin graft?

Is it a skin graft? Is it a, I think it's post-op management. You put them on a bed prone for until the wound heals. It'…

That typically is the biggest it's sitting on it afterwards

That typically is the biggest it's sitting on it afterwards, yeah, and you can do some sort of flap to get good tissue o…

So yeah, like you said, has anybody used or recommended laser hair removal for any of their patients? I have. and the pa…

I've sent a few and they haven't really complained.

I've sent a few and they haven't really complained. It's been decent. I've had to almost draw out for the laser hair rem…

Topic Overview

A case-based discussion of pilonidal cyst management in a 12-year-old patient one week after incision and drainage. The group debates timing of definitive surgery (most wait for 2-3 recurrences), reviews the Bascom pit-picking technique as a minimally invasive first-line approach, and discusses formal excision with off-midline closure techniques (Karydakis, Limberg, modified elliptical rotation flaps) for recurrent disease. Adjunctive strategies including postoperative prone positioning and laser hair removal are mentioned, though evidence and patient tolerance vary.

Key Takeaways

Bascom pit-picking: 1mm pit excision under local anesthesia achieves 70% non-recurrence for first-line pilonidal disease. (1:10)
Off-midline closure (Karydakis, Limberg flaps) outperforms midline excision; comparable outcomes across flap techniques. (3:18)
Prone positioning until wound heals is critical; recurrence is primarily a wound-healing problem from surgical-site pressure. (3:43)
Definitive surgery typically deferred until 2-3 recurrences; deep gluteal fold and heavy hair are high-risk exam findings. (0:30)

Inside this episode

Kai, the Library's AI content creator, listened to this episode and mapped who's speaking, the chapters, key claims, and cases. Every item links to the exact moment in the recording.

AI-enriched

Who's speaking

Speaker 1 — host
Speaker 2 — guest
Speaker 3 — guest
Speaker 4 — guest
Speaker 5 — guest
Speaker 6 — guest
Speaker 7 — guest

Chapters

0:01Timing of Definitive Surgery and Bascom Technique — Discussion of when to proceed beyond I&D to definitive surgery, with most panelists waiting for 2-3 recurrences. Introduction of Bascom pit-picking technique as minimally invasive first-line approach.
1:37Factors Affecting Management and Surgical Approach — Consideration of patient factors (age, body habitus, deep gluteal fold, hair burden) that influence timing and choice of operation. Brief mention of recurrence as key decision point.
2:50Definitive Surgical Options and Postoperative Management — Review of open healing versus flap techniques (rhomboid, Karydakis, Limberg, modified elliptical rotation). Discussion of prone positioning as critical postoperative measure to prevent recurrence.
4:20Adjunctive Therapy: Laser Hair Removal — Mixed experiences with laser hair removal—one panelist reports patient found it intolerably painful and discontinued, another has had acceptable results but notes challenges with insurance coverage and ensuring adequate treatment area.

Key claims

0:30After 2-3 recurrences of pilonidal abscess, definitive surgery is typically recommended — Speaker 3
1:10Bascom pit-picking technique involves excising 1-millimeter pits at skin level under local anesthesia and allowing secondary intention healing — Speaker 5
1:10Bascom technique reports 70% non-recurrence rate, though no control group exists — Speaker 5
1:37For recurrent disease or large draining sinuses after Bascom pit-picking, formal excision with off-midline layered closure and drain is performed — Speaker 5
2:31Deep gluteal fold and heavy hair burden are high-risk physical exam findings for pilonidal disease recurrence — Speaker 7
2:53For severe or recurrent pilonidal disease, open excision with wet-to-dry dressing changes or wound VAC is an option — Speaker 3
3:18Karydakis flap is superior to excision alone and comparable to modified Limberg flap for pilonidal disease — Speaker 1
3:18Modified elliptical rotation flap has short-term results comparable to Limberg and Karydakis flaps, though less data exists — Speaker 1
3:43Pilonidal recurrence is primarily a wound healing problem related to postoperative pressure on the surgical site — Speaker 6
3:45Prone positioning postoperatively until wound healing is complete is critical to prevent recurrence — Speaker 6
3:54Plastic surgery consultation with flap reconstruction and prone positioning is used for multiply recurrent pilonidal disease — Speaker 6
4:28One patient reported laser hair removal for pilonidal disease as the most painful procedure he had experienced and discontinued after half a session — Speaker 6
4:42Some patients tolerate laser hair removal for pilonidal disease without significant complaint — Speaker 4
4:46Laser hair removal treatment area may be inadequately extensive if not specifically directed — Speaker 4
4:52Insurance reimbursement for laser hair removal in pilonidal disease has not been successful — Speaker 4

Cases discussed

0:0712-year-old patient with no medical comorbidities, one week post-I&D for acutely infected pilonidal cyst, presenting for follow-up

Points of disagreement

0:27Timing of definitive surgery after initial I&D
- Speaker 3: Wait for 2 recurrences before definitive surgery
- Speaker 4: Usually recommend after 1 recurrence but stretch timing as long as possible
4:28Patient tolerance and utility of laser hair removal
- Speaker 6: Patient found it intolerably painful and discontinued; no longer recommends it
- Speaker 4: Patients have tolerated it reasonably well without major complaints

Open questions

What is the optimal number of recurrences before proceeding to definitive surgery?
Does laser hair removal provide durable benefit in pilonidal disease prevention, and is patient tolerance predictable?
What is the most effective surgical technique for multiply recurrent pilonidal disease?

This episode was analyzed and enriched by Kai, the Library's AI content creator. Every item links to the moment it comes from — click a timestamp to listen in context.

Written for:

Pilonidal Disease Management: When to Operate and How to Keep It From Coming Back

The episode's main topic retold as a plain-language walkthrough — what it is, why it matters, and what the speakers concluded. Written by Kai from the episode transcript and reviewed before publishing.

For the care team · Explainer · AI-written, human-reviewed

Why This Exists as a Surgical Problem

Pilonidal disease occupies an awkward space in general surgery — common enough that most surgeons see it regularly, minor enough that it rarely commands attention in training, and recalcitrant enough that mismanagement creates patients who cycle through multiple operations over years. The condition arises when hair penetrates the skin in the gluteal cleft, provoking a foreign-body reaction that forms pits, sinuses, and recurrent abscesses. It is fundamentally a disease of anatomy (deep gluteal folds concentrate shear forces) and hair burden, which is why it clusters in young, hirsute men and why simple drainage fails so predictably.

The Core Clinical Problem

The question is not whether to drain an acute pilonidal abscess — that is straightforward incision and drainage. The question is when to move beyond temporizing drainage to definitive excision, and which operation to perform. Most surgeons wait for 2-3 recurrences before recommending definitive surgery 0:30. The calculus involves patient factors: age, body habitus, the depth of the gluteal fold, and hair burden all influence both the likelihood of recurrence and the complexity of reconstruction 2:31.

How the Approach Works

The Bascom pit-picking technique represents the least invasive option for patients who have declared themselves recurrent but have not yet developed extensive sinus tracts. Under local anesthesia, the surgeon excises the 1-millimeter pits at skin level using an 11-blade, removing only subcutaneous tissue and allowing secondary intention healing 1:10. The technique reports a 70% non-recurrence rate, though no control group exists 1:10. One discussant described buying "hook, line and sinker" into this approach [q1], reserving formal excision for patients who fail pit-picking or who present with large draining sinuses.

When pit-picking is insufficient — either because the disease is too extensive at presentation or because it recurs after the minimally invasive attempt — formal excision becomes necessary. The principle is off-midline closure. Midline wounds in the gluteal cleft heal poorly because they lie in a high-shear, high-moisture environment under constant pressure. Off-midline techniques move the suture line away from the cleft and flatten the contour to reduce hair accumulation and friction.

Several flap options achieve this goal. The Karydakis flap is superior to excision alone and comparable to the modified Limberg flap 3:18. The modified elliptical rotation flap has short-term results comparable to both, though less data exists 3:18. For severe or multiply recurrent disease, some surgeons perform open excision with wet-to-dry dressing changes or wound VAC therapy rather than attempting primary closure in contaminated or extensively scarred tissue 2:53. One discussant described referring multiply recurrent cases to plastic surgery for flap reconstruction 3:54.

Where Practice Is Genuinely Contested

The most emphatic statement in the discussion was that pilonidal recurrence is "a wound healing problem" driven by postoperative pressure on the surgical site 3:43. One surgeon insists on prone positioning postoperatively until wound healing is complete, arguing this is more critical than the choice of operation itself 3:45. "You can do some sort of flap to get good tissue over it, but unless you get them off of it post-op" the recurrence rate remains high [q2]. This is not standard teaching in most general surgery programs, and compliance is difficult — patients cannot remain prone for weeks — but the claim is that recurrence correlates more strongly with postoperative positioning than with operative technique.

Laser hair removal is biologically plausible as adjunctive therapy, but experience is mixed. One patient reported it as "the most painful thing they had ever had" and discontinued after half a session 4:28[q3]. Another surgeon has had acceptable results with patients tolerating the procedure without significant complaint 4:42, though he notes the treatment area may be inadequately extensive if not specifically directed 4:46 and insurance reimbursement has not been successful 4:52.

When to Involve This Team

For a primary care physician or emergency physician, the first episode of pilonidal abscess requires drainage but not surgical referral. After the second recurrence, refer to general surgery for consideration of definitive management. High-risk physical exam findings — deep gluteal fold and heavy hair burden — may warrant earlier referral 2:31. For patients who have failed multiple operations, consider plastic surgery consultation for flap reconstruction with attention to postoperative positioning 3:54. The patient who presents with extensive draining sinuses at first encounter may benefit from surgical evaluation before the second recurrence, as pit-picking is unlikely to suffice.

Takeaways from this story

Most surgeons wait for 2-3 recurrences before definitive surgery; high-risk anatomy may warrant earlier referral
Bascom pit-picking under local anesthesia reports 70% success before formal excision, though no control group exists
Off-midline closure techniques (Karydakis, Limberg, elliptical rotation flaps) are comparable and superior to midline excision
Prone positioning postoperatively until healing may be more critical than operative technique for preventing recurrence
Laser hair removal tolerance varies widely; insurance reimbursement remains unsuccessful despite biological plausibility

Pilonidal Disease: Escalating Surgical Strategy from Pit-Picking to Flap Reconstruction

The episode's teaching points arranged as a structured lesson, building from the basics up to the finer points. Written by Kai from the episode transcript and reviewed before publishing.

For trainees · Teaching arc · AI-written, human-reviewed

Start conservative, escalate deliberately

The threshold for definitive surgery in pilonidal disease is 2-3 recurrent abscesses requiring incision and drainage 0:30. This waiting period reflects the reality that many pilonidal abscesses do not recur 0:30, and the first episode alone does not justify the morbidity of formal excision. The exception: patients with high-risk physical exam findings — a deep gluteal fold combined with heavy hair burden — may warrant earlier definitive intervention 2:31. These anatomic features predict recurrence strongly enough to compress the observation period 2:31.

Bascom pit-picking occupies the middle ground

Before committing to formal excision, the Bascom technique offers a minimally invasive option 1:10. The procedure is performed under local anesthesia: an 11-blade excises the 1-millimeter pits at skin level, removing only subcutaneous tissue, and the wounds heal by secondary intention 1:10. The reported 70% non-recurrence rate is encouraging 1:10, though no control group exists to clarify how many of these patients would have remained disease-free without intervention 1:10. This technique is appropriate after the first or second recurrence in patients without extensive sinus tracts 1:10. It buys time and avoids a larger operation in the majority 1:10.

Formal excision requires off-midline closure

When Bascom pit-picking fails — or when the patient presents with large draining sinuses from the outset — formal excision becomes necessary 1:37. The critical technical point is off-midline layered closure with drain placement 1:37. Midline closure under tension in the gluteal cleft invites dehiscence and recurrence 1:37. Multiple flap techniques achieve this goal: the Karydakis flap is superior to excision alone and comparable to the modified Limberg flap 3:18. The modified elliptical rotation flap shows similar short-term results, though the evidence base is thinner 3:18. The choice among flaps matters less than the principle: get the closure off the midline and eliminate dead space 1:37.

Recurrence is a wound healing problem, not a technical failure

The most important insight in this discussion is that pilonidal recurrence is fundamentally about postoperative pressure on the surgical site 3:43. No matter how elegant the flap, if the patient sits on the wound during healing, it will fail 3:43. Prone positioning postoperatively until the wound is completely healed is not optional — it is the intervention that separates success from repeated failure 3:45. For multiply recurrent disease, plastic surgery consultation with flap reconstruction is appropriate 3:54, but only if the patient can commit to prone positioning throughout healing 3:45. This is not a minor inconvenience; it is weeks of restricted mobility 3:45. Patients who cannot or will not comply are poor candidates for flap reconstruction 3:54.

Open excision remains an option for severe disease

When the disease is extensive or multiply recurrent with poor tissue quality, open excision with wet-to-dry dressing changes or wound VAC therapy is a legitimate choice 2:53. This approach accepts prolonged healing time in exchange for eliminating the risk of closure failure 2:53. It is the fallback when flap reconstruction has failed or when the patient's anatomy or compliance makes closure untenable 2:53.

Adjuncts are inconsistent

Laser hair removal is theoretically appealing but practically unreliable 4:28 4:42. One patient described it as the most painful procedure he had experienced and discontinued after half a session 4:28, while others tolerate it without significant complaint 4:42. Even when tolerated, the treatment area may be inadequately extensive unless specifically directed 4:46, and insurance reimbursement has not been successful 4:52. It is not a primary strategy 4:52.

The teaching point the discussants emphasized

The single most emphasized point in this discussion was postoperative prone positioning 3:45. Technical choices — Bascom versus Karydakis versus Limberg — matter 1:10 3:18 3:18, but they are secondary to keeping pressure off the wound 3:43. A patient who sits on a perfect flap will recur 3:43. A patient who stays prone after a simple off-midline closure will heal 3:45. The operation you choose matters less than the instructions you give afterward 3:45.

Takeaways from this story

Definitive surgery is typically deferred until 2-3 recurrent abscesses, except in patients with deep gluteal fold and heavy hair burden.
Bascom pit-picking under local anesthesia reports 70% non-recurrence and avoids formal excision in the majority of early recurrences.
All formal excisions require off-midline layered closure; multiple flap techniques achieve this with comparable results.
Prone positioning postoperatively until complete healing is the critical intervention to prevent recurrence, regardless of flap choice.
Laser hair removal is inconsistently tolerated, often inadequately extensive, and not covered by insurance.

Pilonidal Disease in a 12-Year-Old: Choosing Between Pit-Picking and Definitive Excision

The patient case from this episode, retold from presentation to outcome with the decisions made along the way. Written by Kai from the episode transcript and reviewed before publishing.

For specialists · Case narrative · AI-written, human-reviewed

Presentation

A 12-year-old with no medical comorbidities presented one week after incision and drainage of an acutely infected pilonidal cyst 0:30. The immediate infection had been controlled, but the question now was whether to observe for recurrence or proceed directly to definitive surgery.

The Decision Point

The discussants disagreed on threshold. One stated that after 2-3 recurrences, definitive surgery is typically recommended 0:30. Another said he usually tells patients after one recurrence but stretches it out as long as possible. A third approach centered on physical exam: deep gluteal fold and heavy hair burden are high-risk findings for recurrence 2:31, and in those patients, waiting for multiple episodes may be unnecessarily prolonging a miserable process.

The choice of definitive procedure also split. One discussant had adopted the Bascom pit-picking technique: excising 1-millimeter pits at skin level under local anesthesia and allowing secondary intention healing 1:10. By the published data, 70% of patients treated this way do not recur, though no control group exists 1:10. For recurrent disease or large draining sinuses after pit-picking, that same discussant performs formal excision with off-midline layered closure and drain 1:37. Another option for severe or recurrent disease is open excision with wet-to-dry dressing changes or wound VAC 2:53.

Flap reconstruction was discussed as a more definitive approach. The Karydakis flap is superior to excision alone and comparable to the modified Limberg flap 3:18. The modified elliptical rotation flap has short-term results comparable to Limberg and Karydakis, though less data exists 3:18.

What the Team Emphasized

One discussant argued that pilonidal recurrence is primarily a wound healing problem related to postoperative pressure on the surgical site 3:43. "It's a wound healing problem. And when I think. That typically is the biggest it's sitting on it afterwards" [q2]. Prone positioning postoperatively until wound healing is complete is critical to prevent recurrence 3:45. For multiply recurrent disease, plastic surgery consultation with flap reconstruction and prone positioning is used 3:54.

Laser hair removal was raised as an adjunct. One discussant reported that a patient described it as the most painful procedure he had experienced and discontinued after half a session 4:28. "The patient came back to me and said it was the most painful thing they had ever had, and he got through like one half a session and said he would never go back again" [q3]. Another discussant had sent a few patients and reported they tolerated it without significant complaint 4:42, though the treatment area may be inadequately extensive if not specifically directed 4:46. Insurance reimbursement for laser hair removal has not been successful 4:52.

Outcome

The outcome for this specific patient was not discussed.

What the Case Changes

The disagreement here is not about technique — it is about when to escalate. A 12-year-old after a first I&D could reasonably be observed, treated with pit-picking, or taken to the OR for definitive excision, depending on physical exam findings and the surgeon's threshold for recurrence risk. The discussants who favor pit-picking are trading a higher recurrence rate for a lower-morbidity initial procedure. The discussants who favor early definitive excision are trading upfront morbidity for a lower chance of repeated operations. Both are defensible if the patient understands the tradeoff.

The emphasis on prone positioning is the transferable judgment. If recurrence is a wound healing problem driven by pressure, then the technical choice of flap matters less than the postoperative protocol. A patient who will not or cannot stay prone until healing is complete may be better served by a staged approach or open healing, regardless of how elegant the closure.

Takeaways from this story

After 2-3 pilonidal recurrences, definitive surgery is typically recommended, though high-risk exam findings may justify earlier intervention.
Bascom pit-picking under local has 70% non-recurrence, but no control group exists to compare against observation.
Pilonidal recurrence is primarily a wound healing problem; prone positioning until healing is complete is critical.
Karydakis flap is superior to excision alone and comparable to modified Limberg flap for definitive management.
Laser hair removal tolerance varies widely; insurance reimbursement has not been successful.

Keywords

pilonidal cyst pilonidal abscess pilonidal disease incision and drainage I&D Bascom pit-picking Karydakis flap Limberg flap modified elliptical rotation flap rhomboid flap marsupialization skin graft laser hair removal excision off-midline closure

Hashtags

#PilonidalCyst #SurgicalIntervention #WoundHealing #IncisionAndDrainage #DefinitiveTreatment #RecurrenceManagement #SurgicalTechniques #PostOperativeCare #LaserHairRemoval #WoundCare #PatientManagement #SurgicalOutcomes #GlutealFold #PhysicalExam #CystManagement #FlapSurgery #SecondaryIntention #DrainingSinuses #InfectedCyst #PilonidalDisease #PediatricSurgery #SoftTissueInfection #SurgicalTechnique

Transcript

So continuing our trend of gross skin and soft tissue infections. You see a 12-year-old patient following up with you in clinic. One week previously, you did an I&D for an acutely infected cyst, which are acutely infected pelonidal cysts, and this patient has no other medical comorbidities. So at what point are you going to attempt a more definitive treatment other than just performing an I&D on these patients? When do you operate? When it comes back, Aaron, when do you operate? After 2. After 2 or 3 I transferred to David. I usually tell them after one, but I stretch it out as long as possible. After 1, well, after the 2nd, 2nd 1, the next one comes back, but I discourage what it looks like does not make you go to the opera noon on the 1st 1. If it's a big thing, you still wait for a 2nd episode, OK. So I bought hook, line and sinker into the best gum technique. This is a group of note organ, uh, taking, taking up pits. And then only operating if they have bigger draining sinuses doing a layered off center off off center midline closure. OK, I know we're way over time, but I tell me how you do this. So you excise out the pits under local, just take an 11 blade and cut out and they're 1 millimeter pits just at skin level, sub subcu tissue, and let them heal by secondary intent, and that by their data 70% are never come back and that they might not come back anyway. They don't have a control group, so. And then if there's a large after the first episode, after the 10 days after incision and drainage, after it's subsided, you bring them back and take out the pits, right? OK. And then what were you saying about, and then if that, if they recur or if they have larger draining sinuses, then they go to the OR for a formal excision of the entire affected area off midline layered closure with a drain. Sorry, adaptation of it, yeah, it's, and it's um, it takes a miserable operation. Situation makes it a lot less miserable. It's still miserable. Are we jumping ahead on your a little bit? That's sorry. So are there, we're trying to save time. Yeah, I don't know I've been tempted to try it. Let's see what, what do you got? So, uh, along those lines, are there any factors that would manage or that would affect your management, either timing and treatment or what type of operation? Any of those things change what you just told us, or no? Their age, their body habitus. Recurrence. That's what I wait for recurrence, OK, but there are some patients who just have, you know, such high risk factors. They look, you know, they have a deep gluteal fold, lots of a ton of hair. Those patients, it's, it's a miserable process. So potentially physical exam findings, potentially, yeah. So you guys touched on this a little bit earlier, which operation would you perform for definitive management? Would anyone open it and leave it open? If it's really nasty, you would, if it's really nasty with wet to dry dressing change or a wound back back back, OK. OK, and then you guys talked about some other off midline closures, right? Anyone do a rhomboid flap? We just tried one. Sort of, OK, so looking at the literature, I was gonna say just briefly looking at the literature, the Kradais flap was superior to excision only and pretty comparable to this modified Lindbergh flap, and then the less data on the modified elliptical rotation flap, but in the short term it has been shown to have comparable results to the Lindbergh and the Kraakas. What's the nuclear weapon? So when they keep coming back, you've had 3 recurrences. What's the nuclear weapon? Is it marsupialization? Is it a skin graft? Is it a, I think it's post-op management. You put them on a bed prone for until the wound heals. It's a wound healing problem. And when I think. That typically is the biggest it's sitting on it afterwards, yeah, and you can do some sort of flap to get good tissue over it, but unless you get them off of it post-op, and that's what our plastics guys will do, you know, when it finally comes to the I can't do this anymore, send them to plastics, they do a flap, leave them on their belly, um, for that's my laser hair removal, my completely unatta substantiated feeling, OK. So yeah, like you said, has anybody used or recommended laser hair removal for any of their patients? I have. and the patient came back to me and said it was the most painful thing they had ever had, and he got through like one half a session and said he would never go back again. So having not had it done myself, I was willing to take his word for it, and I have not recommended it since. I haven't had that experience. I've sent a few and they haven't really complained. It's been decent. I've had to almost draw out for the laser hair removal list. Um, where to go because I don't think they're going wide enough or extensive enough, um, and I've even encouraged to try to submit for insurance, um, reimbursement, but have not been successful in that part yet because it is expensive. What's next

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